Maximum Possible Combinations

Date: 1/23/96 at 3:32:55
From: Raphael Oscar Rues
Hello,
I wonder if you can tell me how can I calculate the following:
...Which is the maximal number of possibilities that I can obtain for
n = digit? - like having a phone number with 9 digits. How many
users could I theoretically cover?
Thanks in advance for your help,
Regards,
Raphael

Date: 6/12/96 at 22:36:13
From: Doctor Jodi
Hi there! If you have a 9 digit phone number with any digit from
0-9 in each of the 9 places, you multiply
10 digits * 10 digits * 10 digits * 10 digits * 10 digits * 10 digits *
10 digits * 10 digits * 10 digits
Since each of 9 times you have 10 choices for the number.
-Doctor Jodi, The Math Forum